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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [itron/] [src/] [tsnd_mbf.c] - Rev 278
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/* * ITRON Message Buffer Manager * * COPYRIGHT (c) 1989-1999. * On-Line Applications Research Corporation (OAR). * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.OARcorp.com/rtems/license.html. * * $Id: tsnd_mbf.c,v 1.2 2001-09-27 11:59:13 chris Exp $ */ #include <itron.h> #include <rtems/itron/msgbuffer.h> #include <rtems/itron/task.h> #include <assert.h> /* only for blocking */ /* * tsnd_mbf - Send Message to MessageBuffer with Timeout */ ER tsnd_mbf( ID mbfid, VP msg, INT msgsz, TMO tmout ) { ITRON_Message_buffer_Control *the_message_buffer; Objects_Locations location; Watchdog_Interval interval; boolean wait; if (msgsz <= 0 || !msg) return E_PAR; interval = 0; if ( tmout == TMO_POL ) { wait = FALSE; } else { wait = TRUE; if ( tmout != TMO_FEVR ) interval = TOD_MILLISECONDS_TO_TICKS(tmout); } if ( wait && _ITRON_Is_in_non_task_state() ) return E_CTX; the_message_buffer = _ITRON_Message_buffer_Get(mbfid, &location); switch (location) { case OBJECTS_REMOTE: case OBJECTS_ERROR: /* Multiprocessing not supported */ return _ITRON_Message_buffer_Clarify_get_id_error(mbfid); case OBJECTS_LOCAL: /* XXX Submit needs to take into account blocking */ _CORE_message_queue_Submit( &the_message_buffer->message_queue, msg, msgsz, the_message_buffer->Object.id, NULL, CORE_MESSAGE_QUEUE_SEND_REQUEST, wait, /* sender may block */ interval /* timeout interval */ ); _Thread_Enable_dispatch(); return _ITRON_Message_buffer_Translate_core_message_buffer_return_code( _Thread_Executing->Wait.return_code ); } /* * If multiprocessing were supported, this is where we would announce * the existence of the semaphore to the rest of the system. */ #if defined(RTEMS_MULTIPROCESSING) #endif return E_OK; }
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